CN106329992B - The dial type piezoelectric generating device of dijection head piece jet excitation - Google Patents
The dial type piezoelectric generating device of dijection head piece jet excitation Download PDFInfo
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- CN106329992B CN106329992B CN201610821597.5A CN201610821597A CN106329992B CN 106329992 B CN106329992 B CN 106329992B CN 201610821597 A CN201610821597 A CN 201610821597A CN 106329992 B CN106329992 B CN 106329992B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/185—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using fluid streams
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
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Abstract
本发明公开了一种双射流口射流激励的拨动式压电发电装置，以解决当前工业生产环境中气体直接冲击式压电发电装置存在俘能功率小、效率低的问题。本发明由阶梯式微孔隙增流装置、拨片拨动式发电机组件和紧定螺钉三部分组成。阶梯式微孔隙增流装置和拨片拨动式发电机组件通过紧定螺钉紧固连接。所述阶梯式微孔隙增流装置增大了小流量高压气体的流量，并通过拨片拨动式发电机组件实现能量俘获。本发明可将气体流量放大，并对放大流量的气体进行压电能量收集，显著提高压电发电装置的功率，提升俘能效率3倍以上。通过全桥整流电路可以持续有效的为低功耗电子设备供能，在低功耗器件、物联网节点和低功耗传感器供能技术领域具有广泛的应用前景。
The invention discloses a toggle-type piezoelectric power generation device excited by double-jet jets to solve the problems of low energy capture power and low efficiency in the current industrial production environment of the gas direct impact type piezoelectric power generation device. The invention consists of three parts: a step type micropore flow increasing device, a paddle type generator assembly and a set screw. The step type micropore flow increasing device and the paddle type generator assembly are tightly connected by set screws. The step-type micropore flow increasing device increases the flow rate of low-flow high-pressure gas, and realizes energy capture through the paddle-driven generator assembly. The invention can amplify the gas flow, and collect piezoelectric energy from the gas with amplified flow, significantly improve the power of the piezoelectric power generation device, and increase the energy capture efficiency by more than 3 times. The full-bridge rectifier circuit can continuously and effectively supply energy to low-power electronic devices, and has broad application prospects in the fields of low-power devices, Internet of Things nodes and low-power sensor energy supply technologies.
Description
Technical field
The present invention relates to a kind of dial type piezoelectric generating device of dijection head piece jet excitation, belongs to generating and low-power consumption electricity
Sub- equipment energizes technical field.
Background technology
Melt with the horizontal continuous improvement of manufacturing equipment technical intelligenceization, and along with the depth of itself and technology of Internet of things
Close, the low energy-consumption electronic device such as substantial amounts of Internet of things node is used widely in machine-building equipment field.To Internet of things node etc.
Low energy-consumption electronic device carries out stabilization, reliable continued power, is the premise for ensureing the low energy-consumption electronic device normal works such as Internet of things node.
The low energy-consumption electronic device such as Internet of things node of Current mechanical manufacturing field energy-provision way is mainly directly powered including power supply and chemical-electrical
Pond power supply two ways.Wherein, there is the problems such as electromagnetic interference is serious, system wiring is complicated in power supply direct feeding system, and change
Learn battery powered mode and then have that battery is limited, need to regularly replace and the deficiencies of environmental pollution.Therefore, need to study
A kind of novel energy supply technology for the energy supply of the low energy-consumption electronic devices such as Internet of things node is brought with solving traditional energy supply technology
Many drawbacks.
The micro- energy conversion of direct piezoelectric effect capture environment using piezoelectric is the environmental energy collection technique of electric energy, by
In with energy conversion efficiency height, cleanliness without any pollution, the advantage such as do not grown by electromagnetic interference and service life, turn into micro- energy and turn
Change the study hotspot with supply technology.The energy that compressed gas has is a large amount of existing form of energy in industrial production, and it has
The advantages such as standby safely cleaning is renewable.Therefore, the gas energy in industrial production environment is rationally utilized, with reference to piezoelectric just
Gas energy is converted into electric energy and energized for low energy-consumption electronic devices such as wireless internet of things nodes by piezo-electric effect, to improving industry manufacture dress
The intelligent level of standby technology has facilitation.The device of traditional piezo-electric generating generally utilizes the high pressure gas in industrial environment
Body directly impacts piezoelectric generating device to capture electric energy so that traditional gas impact type piezoelectric generating device has prisoner can power
Small, the problem of efficiency is low, limit development and application of the piezoelectric generating device in low power dissipation electron equipment energy supply technical field.
The content of the invention
Directly impacted when piezoelectric generating device captures electric energy in the presence of prisoner in gases at high pressure to solve existing piezoelectric generating device
The technical problems such as energy power is small, efficiency is low, the present invention disclose a kind of dial type piezoelectric generating device of dijection head piece jet excitation,
There is provided that a kind of power is big, electric supply installation of efficiency high for low energy-consumption electronic device.
The technical solution adopted in the present invention is：
A kind of dial type piezoelectric generating device of the dijection head piece jet excitation by staged micropore flow-increasing device, dial
Piece dial type generator assembly and holding screw composition, wherein staged micropore flow-increasing device and plectrum dial type generating set
Part is fastenedly connected by holding screw；Staged micropore flow-increasing device be provided with circular cone type suction end, taper outlet side,
Flow increasing end threaded connection hole, air vent, one-level miniature jet hole, two level miniature jet hole and baffle ring；The plectrum dial type hair
Electric machine assembly includes piston mounting bracket, electrification component mounting bracket, piezo-electric generating component, trip bolt, piston and spring, piston peace
Shelve and be threadedly coupled with electrification component mounting bracket by trip bolt, piezo-electric generating component is connected with piston.
The circular cone type suction end is located at the suction end of staged micropore flow-increasing device, and taper outlet side is located at staged
The outlet side of micropore flow-increasing device, flow increasing end threaded connection hole is close to taper outlet side, the flow increasing end threaded connection
Hole is threadedly coupled with holding screw, and the one-level miniature jet hole and two level miniature jet hole position fill in the flow increasing of staged micropore
The middle part put, is provided with baffle ring between one-level miniature jet hole and two level miniature jet hole, the air vent is miniature close to two level
Jet orifice.
The piston mounting bracket is provided with generator assembly installation screwed hole, for installing fixed plectrum dial type generator
Component, the piston mounting bracket are provided with steam vent, and the piston mounting bracket sets piston slide opening, and piston can be in piston slide opening
Slide, the piston mounting bracket is provided with generator assembly air inlet, and mixed gas enters via generator assembly air inlet to be dialled
Piece dial type generator assembly.
The electrification component mounting bracket is provided with electrification component collar mounting holes, and piezo-electric generating component passes through electrification component ring
Shape mounting hole is fixed on electrification component mounting bracket, and the electrification component mounting bracket is provided with routing hole, the generating set
Part mounting bracket is provided with installation through-hole, and trip bolt is threadedly coupled with installation through-hole.
The piezo-electric generating component is provided with elastic base plate and piezoelectric element, elastic base plate and the piezoelectric element bonding；
The piston is provided with to be acted on by aerofoil, mixed gas via generator assembly air inlet into plectrum dial type generator assembly
On by aerofoil, the piston is provided with traveller, and the traveller can slide in piston slide opening, and the piston, which is provided with, to be dialled
Piece, the spring realize the drawback movement of piston.
The beneficial effects of the invention are as follows：In the case where not influenceing industrial working condition, ladder proposed by the present invention is utilized
The hole flow-increasing device that declines carries out Flow amplification to small flow high pressure gas, and the gas after amplified flow is sprayed by taper outlet side
Go out, encourage plectrum dial type generator assembly, internal piezo-electric generating component is produced Bending Deformation, realized using direct piezoelectric effect
Electric energy converts, to reach the work(for using the effect for amplifying air-flow progress collection of energy conversion, being remarkably improved piezoelectric generating device
Rate, more than 3 times of lifting prisoner's energy efficiency.The present invention possesses gas flow enlarging function, while has and the gas of amplified flow is entered
The technical advantage that row piezoelectric energy is collected, it is with a wide range of applications in low power dissipation electron equipment energy supply technical field.
Brief description of the drawings
Fig. 1 show the structural representation of the dial type piezoelectric generating device of dijection head piece jet excitation proposed by the present invention
Figure；
Fig. 2 show staged micropore flow-increasing device structural representation proposed by the present invention；
Fig. 3 show circular cone type suction end sectional view proposed by the present invention；
Fig. 4 show taper outlet side proposed by the present invention sectional view；
Fig. 5 show plectrum dial type generator assembly structural representation proposed by the present invention；
Fig. 6 show piston mounting bracket structural representation proposed by the present invention；
Fig. 7 show electrification component mounting bracket structural representation proposed by the present invention；
Fig. 8 show piezo-electric generating component structure diagram proposed by the present invention；
Fig. 9 show piston structure schematic diagram proposed by the present invention；
Figure 10 show plectrum structural representation proposed by the present invention；
Figure 11 show full bridge rectifier schematic diagram proposed by the present invention.
Embodiment
Embodiment：Illustrate present embodiment with reference to Fig. 1 ~ Figure 11.Present embodiments provide for a kind of dijection head piece
The specific embodiment of the dial type piezoelectric generating device of jet excitation.A kind of dial type pressure of the dijection head piece jet excitation
Electric TRT is made up of staged micropore flow-increasing device 1, plectrum dial type generator assembly 2 and holding screw 3, its scala media
Ladder type micropore flow-increasing device 1 and plectrum dial type generator assembly 2 are fastenedly connected by holding screw 3.
Staged micropore flow-increasing device 1 includes circular cone type suction end 1-1, taper outlet side 1-2, flow increasing end spiral shell
Line connecting hole 1-3, air vent 1-4, one-level miniature jet hole 1-5, two level miniature jet hole 1-6 and baffle ring 1-7；
The circular cone type suction end 1-1 is located at the suction end of staged micropore flow-increasing device 1, taper outlet side 1-2 positions
In the outlet side of staged micropore flow-increasing device 1, the flow increasing end threaded connection hole 1-3 is described close to taper outlet side 1-2
Flow increasing end threaded connection hole 1-3 is threadedly coupled with holding screw 3, one-level miniature jet hole 1-5 and two level the miniature jet hole
1-6 is located at the middle part of staged micropore flow-increasing device 1, is set between one-level miniature jet hole 1-5 and two level miniature jet hole 1-6
It is equipped with baffle ring 1-7, baffle ring 1-7 can obstruct one-level miniature jet hole 1-5 and two level miniature jet hole 1-6, and the air vent 1-4 is leaned on
Nearly two level miniature jet hole 1-6, gases at high pressure enter one-level miniature jet hole 1-5 and two level simultaneously via the air vent 1-4
The mixed gas of miniature jet hole 1-6, inducing gas and gases at high pressure composition carries out once empty via one-level miniature jet hole 1-5
Gas can amplify, and carry out secondary acceleration via two level miniature jet hole 1-6, the mixed gas after secondary acceleration passes through taper outlet side
1-2 sprays staged micropore flow-increasing device 1.
The plectrum dial type generator assembly 2 is the energy of the dial type piezoelectric generating device of dijection head piece jet excitation
Reforming unit.The plectrum dial type generator assembly 2 includes piston mounting bracket 2-1, electrification component mounting bracket 2-2, piezoelectricity hair
Electrical component 2-3, trip bolt 2-4, piston 2-5 and spring 2-6；
The piston mounting bracket 2-1 is provided with generator assembly installation screwed hole 2-1-1, is stirred for installing fixed plectrum
Formula generator assembly 2；The piston mounting bracket 2-1 is provided with steam vent 2-1-2, and mixed gas is via steam vent 2-1-2 from dialling
Discharged in piece dial type generator assembly 2；The piston mounting bracket 2-1 sets piston slide opening 2-1-3, piston 2-5 can be in piston
Slided in slide opening 2-1-3；The piston mounting bracket 2-1 is provided with generator assembly air inlet 2-1-4, and mixed gas is via generating
Thermomechanical components air inlet 2-1-4 enters plectrum dial type generator assembly 2, acts on piston 2-5, promotes piston 2-5 movements.Institute
State electrification component mounting bracket 2-2 and be provided with electrification component collar mounting holes 2-2-1, piezo-electric generating component 2-3 passes through electrification component
Collar mounting holes 2-2-1 is fixed on electrification component mounting bracket 2-2；The electrification component mounting bracket 2-2 is provided with wiring
Hole 2-2-2, the extraction for piezo-electric generating component 2-3 wires；The electrification component mounting bracket 2-2 is provided with installation through-hole 2-2-
3, connect for installing trip bolt 2-4, piston mounting bracket 2-1 and electrification component mounting bracket 2-2 and being fastened by trip bolt 2-4
Connect.The piezo-electric generating component 2-3 be provided with elastic base plate 2-3-1 and piezoelectric element 2-3-2, the elastic base plate 2-3-1 and
Switzerland's ergo Products can be selected by epoxy resin glue sticking, the epoxide-resin glue in piezoelectric element 2-3-2；The piezoelectricity
Piezoelectric ceramic piece PZT or flexible obdurability piezoelectrics PVDF, the piezoelectric element 2-3-2 can be selected in element 2-3-2
The piezoelectric product of essence amount electronics (Shenzhen) Co., Ltd of the U.S..The piston 2-5 is provided with by aerofoil 2-5-1, gaseous mixture
After body enters plectrum dial type generator assembly 2 via generator assembly air inlet 2-1-4, act on by aerofoil 2-5-1, push away
Piston 2-5 is moved；The piston 2-5 is provided with traveller 2-5-2, the traveller 2-5-2 and can slided in piston slide opening 2-1-3
It is dynamic；The piston 2-5 is provided with plectrum 2-5-3, for stirring piezo-electric generating component 2-3, when piston 2-5 stress moves, dials
Piece 2-5-3 stirs piezo-electric generating component 2-3 and produces deformation, using direct piezoelectric effect, realizes that gas pressure can arrive the conversion of electric energy,
The function of generator prisoner's energy is realized, can be that low power dissipation electron equipment energizes with continuous and effective by full bridge rectifier.It is described
Spring 2-6 is used for piston 2-5 drawback movement.
Described circular cone type suction end 1-1 maximum gauge is D1, D1Value meet scope be 60 ~ 80 mm, pass through
Adjust D1Value can adjust the intake velocity of inducing gas, D in present embodiment1Value be 60 mm, the circular cone
Formula suction end 1-1 cone angle is θ, and the scope that θ value meets is 0 ~ 60 °, and inducing gas can be adjusted by the value for adjusting θ
Intake velocity, θ value is 20 ° in present embodiment；The minimum diameter of the taper outlet side 1-2 is D2, D2With D1's
Ratio is G=D2/D1, the scope that G value meets is 0.4 ~ 0.8, and G value is 0.8 in present embodiment；The taper
Outlet side 1-2 cone angle is α, and the scope that α value meets is 0 ~ 20 °, and the value by adjusting α can adjust the stream of mixed gas
Speed, α value is 15 ° in present embodiment；The described a diameter of D of air vent 1-43, D3With D1Ratio be F=D3/D1,
The scope that F value meets is 0.02 ~ 0.1, and F value is 0.1 in present embodiment；The air vent 1-4 centers with
Circular cone type suction end 1-1 left side air line distance is L1, L1The scope that meets of value be 10 ~ 25 mm, this specific embodiment party
L in formula1Value be 15 mm；The air vent 1-4 centers and taper outlet side 1-2 right sides air line distance are L2, L1With L2
Ratio be J=L1/L2, the scope that J value meets is 0.2 ~ 0.5, and J value is 0.3 in present embodiment,；It is described
One-level miniature jet hole 1-5 aperture is D4, D4The scope that meets of value be 40 ~ 60 mm, D in present embodiment4's
Value is 50 mm, and the centre distance between one-level miniature jet hole 1-5 and two level miniature jet the hole 1-6 is L3, D4With L3
Ratio be Z=D4/L3, the scope that Z value meets is 2 ~ 5, and Z value is 2 in present embodiment；The two level is miniature
Jet orifice 1-6 apertures are D5, D5With L3Ratio be X=D5/L3, the scope that X value meets is 2 ~ 5, in present embodiment
X value is 2.
The piezo-electric generating component 2-3 can arrange that M, M are positive integer along piston 2-5 axial directions, this specific embodiment party
M value is 4 in formula；The piezoelectric element 2-3-2 arranges N number of on each elastic base plate 2-3-1, and N is positive integer, and this is specific
N value is 2 in embodiment；The steam vent 2-1-2 is S apart from generator assembly air inlet 2-1-4 distance, and S's takes
The scope that value meets is 10 ~ 20mm, and S value is 15 mm in present embodiment；The generator assembly air inlet 2-1-
The scope that 4 a diameter of D, D value meets is 40 ~ 50 mm, and D value is 46 mm in present embodiment；It is described by
Aerofoil 2-5-1 a diameter of d, D and d difference are M=D-d, and the scope that M value meets is 4 ~ 8 mm, present embodiment
Middle M value is 6 mm；The plectrum 2-5-3 has angle of inclination beta, and the scope that β value meets is 5 ~ 20 °, this specific embodiment party
β value is 15 ° in formula；The plectrum 2-5-3 has the mm of scope 5 ~ 15 that height value h, h value meet, this specific implementation
H value is 10 mm in mode.
Described full bridge rectifier is by diode D6, diode D7, diode D8, diode D9With electric capacity C1Composition.When
Flow increasing gas is after taper outlet side 1-2 outflows, excitation plectrum dial type generator assembly 2, in the presence of direct piezoelectric effect
The electric signal of positive and negative alternating cyclical change can be produced, caused electric signal is wired to the defeated of full bridge rectifier
Enter end.When producing positive electric signal, diode D6With diode D9Conducting forms closed-loop path, and electric energy can be stored in electric capacity C1
In；When producing negative sense electric signal, diode D7With diode D8Conducting form closed-loop path, and the electric signal streams after rectification to
With diode D6, diode D9Closed-loop path electric signal streams are to identical, therefore electric energy is still stored in electric capacity C1In.Deposited through over commutation
Electric energy after storage can be via C1Output end low energy-consumption electronic device is flowed out to be powered.The diode（D6~D9）Can be NI5408
Commutation diode, the electric capacity C1Capacitance swing be 100 ~ 1000 μ F.
Operation principle：The impact energy of gas can be converted into electric energy, this hair using the direct piezoelectric effect of piezoelectric
The dial type piezoelectric generating device of bright designed dijection head piece jet excitation can induce in the presence of small flow high pressure gas
Outside air is oriented flowing, based on the influence of viscous effect power between gas, the outside air after induction can be carried out into flow increasing,
The plectrum dial type hair being connected with staged micropore flow-increasing device is flowed out and encouraged from taper outlet side after gas speedup
Electric machine assembly carries out electric transformation of energy.The technical advantages of the present invention are that staged micropore flow-increasing device being capable of secondary acceleration general
Gases at high pressure spray at a terrific speed, and the gas quickly flowed can cause the local depression in device, because ambient pressure is more than
Device air pressure inside, have substantial amounts of air for balance pressure difference and be sucked into staged micropore flow-increasing device, flow increasing is reached with this
Effect.Plectrum dial type generator assembly it is a technical advantage that its by the structure type of arrayed multilayer piezo-electric generating component,
The multi-layer piezoelectric electrification component of array is simultaneously operable, by gas impact possessed by energy sufficiently captured, its design
Plectrum structure piezoelectric element can fully be stirred and its generated energy is reached maximum.Therefore, plectrum dial type generator assembly can
The increased gas flow of staged micropore flow-increasing device institute is made full use of to carry out gas impact energy to electric transformation of energy.
In summary the content, the dial type piezoelectric generating device for the dijection head piece jet excitation that the present invention designs, can
Gas flow is amplified, and piezoelectric energy collection is carried out to the gas of amplified flow, is remarkably improved the work(of piezoelectric generating device
Rate, more than 3 times of lifting prisoner's energy efficiency.It can be energized by full bridge rectifier with continuous and effective for low power dissipation electron equipment, it is right
The intelligent level for improving industrial manufacturing equipment technology has facilitation.
Claims (4)
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| CN201610821597.5A CN106329992B (en) | 2016-09-14 | 2016-09-14 | The dial type piezoelectric generating device of dijection head piece jet excitation |
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|---|---|---|---|
| CN201610821597.5A CN106329992B (en) | 2016-09-14 | 2016-09-14 | The dial type piezoelectric generating device of dijection head piece jet excitation |
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| CN106329992B true CN106329992B (en) | 2018-03-06 |
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| CN107359820B (en) * | 2017-08-17 | 2019-02-22 | 浙江师范大学 | A push-toggle passive doorbell |
| CN107707154B (en) * | 2017-10-31 | 2019-09-20 | 长春工业大学 | Impulsive up-frequency piezoelectric generator for powering low-power electronic components |
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| US20120007473A1 (en) * | 2010-02-25 | 2012-01-12 | People & Environment Co., Ltd. | Piezoelectric generator unit using piezoelectric bimorph |
| CN201898457U (en) * | 2010-11-12 | 2011-07-13 | 联志玩具礼品(东莞)有限公司 | Pneumatic power generation device |
| CN102594202B (en) * | 2012-03-12 | 2014-11-26 | 清华大学 | Piezoelectric power generation device based on excitation of fluidic micro oscillator |
| CN105281601B (en) * | 2015-11-30 | 2017-07-18 | 长春工业大学 | The rotary generation cylinder energized for pneumatic system Internet of things node |
| CN105281602B (en) * | 2015-11-30 | 2017-08-22 | 长春工业大学 | External piston dial type piezo-electric generating cylinder |
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